Reclining chair of the multiple position type



Oct. 23, 1962 F. F. SCHLIEPHACKE 3,059,969

RECLINING CHAIR OF THE MULTIPLE POSITION TYPE Filed July 13, 1960 2Sheets-Sheet 1 FIG. I.

INVENTOR.

Oct. 23, 1962 F. F. SCHLIEPHACKE 3,059,959

RECLINING CHAIR OF THE MULTIPLE POSITION TYPE Filed July 15, 1960 2Sheets-Sheet 2 FIG. 4.

INVENTOR. FP/DT/OF F .SCNZ/EP/fAfK' Lawn /id #0 [2d prr mve-ys UnitedStates Patent ()fi ice 9,959,969 Patented Oct. 23, 1952 $359,969RECLHNHNG CHAIR OF THE MULTIPLE PUSHTiQN TYPE Fridtjof F. Schliephacke,Berlin-Schmargendorf, Germany, assignor to Anton Lorenz, Boynton Beach,Fla. Filed July 13, 1961?, Ser. No. 42,549 9 Claims. (Cl. 297-321) Thepresent invention relates generally to reclining chairs of the multiplemovement type, and in particular to an improved reclining chairincorporating a body-supporting unit including a movable seat andmovable backrest which are coordinated to each other to establishmultiple chair positions.

The recently developed multiple movement chair of the recliner typecomprises a support and a body-supporting unit including a movable seatand a movable backrest which are mounted on the support for first andsecond movement phases. During the first movement phase, the seat andback-rest move from the sitting position to an intermediate tiltedsitting position during which there is substantially no change in theangular relationship between the seat and back-rest; and during thesecond movement phase the seat and back-rest move from the intermediatesitting position through various reclining positions to a fullyreclining position, with a progressive increased in the angularrelationship between the seat and back-rest. Such multiple movementchair of the recliner type usually incorporates a leg-rest which ismounted for movement to a substantially elevated legsupporting positionduring the first movement phase such as to provide an adequateleg-support for the chair occupant in the intermediate tilted sittingposition and in the infinite number of reclining positions during thesecond movement phase.

There exists the need for relatively simple and compact mechanisms forachieving the coordinated movement of the seat and back-seat during thefirst and second movement phases. Further, provision should be made inthis type of chair to establish the order or sequence of operations ofthe mechanisms to assure that the bodysupporting means will be properlyguided during the first and second movement phases respectively toestablish the multiple positions for the chair. Such sequencing meansfor the chair should be of a positive and reliable nature and preferablyshould be automatically operated when the chair occupant is seated andexerts the necessary actuating force on the body-supporting means of thechair. Still further, the sequencing means should be generallycompatible with the more generalized requirements of simplicity andconstruction and facility for mass production manufacture.

Broadly, it is an object of the present invention to provide an improvedrecliner type of multiple movement chair which realizes one or more ofthe aforesaid objectives. Specifically, it is within the contemplationof the present invention to provide a recliner type of multiple movementchair which provides for respective first and second movement phases forthe chair, with the initial movement of the body-supporting means to anintermediate tilted position with substantially no angular changebetween the seat and back-rest, and the further movement of the chairthrough successive reclining positions with an increase in the angularrelationship between the seat and back-rest.

It is a further object of the present invention to provide an improvedmultiple movement chair of the recliner type which incorporates as partof the coordinating mechanisms thereof a sequencing arrangement whichestablishes the order of operations for the coordinating mechanisms toassure proper chair operation.

In accordance with an illustrative embodiment demonstrating objects andfeatures of the present invention, there is provided a reclining chaircomprising a support and body-supporting means including a seat andbackrest adapted to be mounted on said support for inclining andreclining movement respectively from a sitting position to anintermediate tilted sitting position to a reclining position in a secondmovement phase. A front seat guiding link is pivotally connected to theseat and means including a lost motion connection providing a frontpivotal mount for the front seat guiding link on said support. A rearseat guiding link is pivotally mounted on the support and pivotallyconnected to the seat, the front and rear seat guiding links servedun'ng the first movement phase to guide the seat upwardly andrearwardly relative to the support to a first inclined position. Abackrest guiding link is pivotally mounted on the support at a pivotalmount and means pivotally connected to the back-rest. Means are providedfor blocking lost motion travel of the front guiding link relative tothe support during the first movement phase and enables the lost motiontravel during the second movement phase. The front and rear seat guidinglinks cooperate with the back-rest guiding link during said firstmovement phase to maintain a substantially fixed angular relationshipbetween the seat and back-rest and the front and rear seat guiding linkscooperate with the back-rest guiding link during said second movementphase to increase the angular relationship between the seat andback-rest, with the front seat guiding link having a lost motion travelrelative to the support and with the seat turning on the pivotalconnection to the rear seat guiding link.

The above brief description, as well as further objects, features andadvantages of the present invention will be more fully appreciated byreference to the following detailed description of several presentlypreferred, but nonetheless illustrative embodiments, according to thepresent invention, wherein:

FIG. 1 is a side elevational view, with parts broken away, of areclining chair demonstrating features of the present invention, shownin the upright or sitting position;

FIG. 2 is a side elevational view similar to FIG. 1, but showing thechair in its intermediate tilted sitting position;

FIG. 3 is a side elevational view similar to FIG. 1, but showing thechair in a fully reclined position;

FIG. 4 is a side elevational view of another embodiment of a recliningchair demonstrating further features of the invention, shown in theupright or sitting position;

FIG. 5 is a side elevational view similar to FIG. 4, but showing thechair in the intermediate tilted sitting position; and,

FIG. 6 is a side elevational view similar to FIG. 4, but showing thechair in a fully reclined position.

Referring now specifically to FIGS. 1 to 3 of the drawings, there isshown a reclining chair, generally designated by the reference numeral10, which includes a chair frame or support 12 having opposite sidewalls 14, 16 interconnected by a number of cross braces 18 and supportedon depending legs 20. A body-supporting means or unit including aback-rest 22 and the seat 24 are mounted on the support for recliningand inclining movement respectively through a first movement phase fromthe upright or sitting position illustrated in FIG. 1 to theintermediate tilted position illustrated in FIG. 2 and for a secondmovement phase from the intermediate tilted sitting position illustratedin FIG. 2 through a series of reclining positions to the fully reclinedposition illustrated in FIG. 3. In the interest of simplicity, there isno showing of the leg rest and its mounting and controlled arrangementwhich is usually found in a chair of this type. However, it will beappreciated that such leg-rest will be incorporated in the chair whichleg-rest moves to an elevated leg-supporting position as thebodysupport-ing means moves into the intermediate tilted sittingposition illustrated in FIG. 2. Effectively the legrest provides asupport for the legs of the chair occupant as the chair is moved fromthe intermediate tilted sitting position through the various recliningpositions to the fully reclined positions illustrated in FIG. 3. Thedetails of such leg-rest and its mounting and control arrangement, aswell as its incorporation into the present chair, will be generallyunderstood to those skilled in the art and typical arrangement may befound in the prior art patents of the assignee herein.

Seat guiding means are operatively connected between the support 12 andthe seat 24 for imparting a first inclination to the seat during thefirst movement phase, as may be seen in FIGS. 1 and 2, and for impartinga second inclination to the seat during the second movement phase, asmay be seen by comparing FIGS. 2 and 3. The seat guiding means includesa front seat guiding link 26 which is upwardly and forwardly inclinedand has a front pivotal connection 28 to the seat 24. Means including alost motion connection provide a front pivotal mount for the front seatguiding link 26 on the support 12. In this illustrative embodiment, amounting bracket 30 is fixed to the chair frame or support 12 (i.e. atthe cross brace 18) and carries a pin 32 which is confined within anelongated slot 34 formed within the lower end portion of the front seatguiding link 26. The pin 32 remains at the upper end of the slot 34during the first movement phase and provides the front pivotal mount forthe front seat guiding link 26. During the second movement phase, thereis a lost motion travel between the pin and slot interconnection 32, 34,with the link 26 translating upwardly such that the pin 32 is confinedat the lower end of the slot in the fully reclined position illustratedin 'FIG. 3. The seat guiding means further includes a rear seat guidinglink 38 which is up- Wa-rdy and forwardly inclined and has a rearpivotal connection 40 at its upper end to the seat 24- at a locationspaced rearwardly of the front pivotal connection 28. The rear seatguiding link 38 has a rear pivotal mount 42 on the support 12 providedby an appropriate bracket 44. The front and rear seat guiding links 26,38, serve during the first movement phase to guide the seat upwardly 4and rearwardly relative to the support to a first inclined postion andduring the second movement phase to guide the seat 24 to a secondinclined position, with the front seat guiding link 26 having a lostmotion travel relative to the support 12, and with the seat 24 turningon the rear pivotal connection 40.

Turning now to the back-rest mounting and guiding arrangement, thebackrest 22 is pivotally mounted on the seat 24 at a back-rest pivot 46such that the backrest may move substantially as a unit with the seat 24during the first movement phase and recline relative to the seat 24during the second movement phase to increase the angular relationshiptherebetween. Spaced forwardly of the back-rest pivot 46 is a back-restguiding link 48 which in this illustrative embodiment is forwardly anddownwardly inclined. At its upper end the back-rest guiding link 48 hasa pivotal mount 50 on the support provided by an appropriate bracket 52,and at its lower end the back-rest guiding link 48 has a pivotalconnection 54 to the forwardly projecting extension of the back-restpivot '46. The back-rest guiding link 48 cooperates with the seatguiding links 26, 38 during the first movement phase to maintain asubstantially fixed angular relationship between the seat 24 and theback-rest, and during the second movement phase to increase the angularrelationship between the seat and back-rest.

Provision is made for blocking or precluding lost motion travel of thefront guiding link 26 relative to the support 12 during the firstmovement phase and for enabling such lost motion travel during thesecond movement phase. The blocking or sequencing means includes adouble-arced slot 56 formed on the mounting bracket 30 adjacent thefront seat guiding link 26 and guidingly engaging a pin 58 fixed to thelower end of the front seat guiding link 26. The double-arced slot 56includes a first slot section 56a merging with a second slot section5612 at a junction 560. The pin 58 is at the end of the first slotsection 56a remote from the junction 560 in the sitting position of thechair and translates along the first slot section 56a during the firstmovement phase, as may be appreciated by comparing FIGS. 1 and 2. Thecurvature of the first slot section 56a is selected at a radius aboutthe pivotal mount 32 (such radius being measured between the pins 32,58) to confine the front seat guiding link 26 to turning movement aboutthe front pivotal mount 32 while at the upper end of the lost motionslot 34. The second slot section 56b is substantially aligned with thelost motion slot 34 when the chair is in the intermediate tilted sittingposition of FIG. 2, and is of an appropriate curvature to enable thelost motion travel of the pin and slot interconnection 32, 34 during thesecond movement phase such that the front seat guiding link 26 maytranslate upwardly relative to the support, as may be appreciated bycomparing FIGS. 2 and 3.

Appropriate stops are provided to establish the several chair positions,as is generally understood. Specifically, the seat guiding means isblocked in the intermediate tilted sitting position by a stop 60 fixedto the chair frame or support 12 behind the rear seat guiding link 38 toblock clockwise turning movement thereof about the rear pivotal mount 42when the chair arrives at the intermediate tilted sitting position ofFIG. 2. Thereafter, and as previously indicated, there is a turningmovement of the seat about the rear pivotal connection 40 with acorresponding lost motion of the front seat guiding link 26 relative tothe support to the fully reclined position of FIG. 3. In thisillustrative embodiment, the fully reclined position is established bycontact of the lower end of the back-rest 22 with the rear cross brace18 serving as a stop.

A typical sequence of operations will now be described to facilitate amore thorough understanding of the present invention:

As the chair occupant leans against the back-rest 22 and pushesrearwardly, the seat 24 will be guided by the seat guiding means whichincludes a four-bar seat guiding linkage having as movable links thereofthe front seat guiding link 26, the portion of the seat 24 intermediatethe front and rear pivotal connections 28, 40, and the rear seat guidinglink 38, and as the stationary link thereof the portion of the supportintermediate the front and rear pivotal mounts 32, 42. During such firstmovement phase, the guiding action on the back-rest 22 from theback-rest guiding link 48 is such as to maintain a substantially fixedrelationship to the seat 24, with the bodysupporting unit moving intothe intermediate tilted sitting position illustrated in FIG. 2 whereinfurther turning movement in the clockwise direction of the rear seatguiding link 38 is precluded by the stop 60. Thereupon, continuedpressure by the chair occupant against the backrest 22 will cause theturning movement of the seat 24 about the rear pivotal connection 40with a concurrent lost motion travel of the front seat guiding link 26relative to the support. During such second movement phase, the guidingaction of the back-rest guiding link 48 on the back-rest 22 is such asto open up the angle between the seat and back-rest, as shown in FIGS. 2and 3, with the fully reclined position being established when the lowerend of the back-rest 22 contacts the rear cross brace 18.

Referring now specifically to FIGS. 4 to 6 of the drawings, there isshown a further embodiment of reclining chairs, generally designated bythe reference numeral 118,

which includes a chair frame or support 112 having opposite side walls114, 116 interconnected by a number of cross braces 118 and supported ondepending legs 120. A body-supporting means or unit including aback-rest 122 and the seat 124 are mounted on the support for recliningand inclining movement respectively through a first movement phase fromthe upright or sitting position illustrated in FIG. 4 to theintermediate tilted position illustrated in FIG. 5 and for a secondmovement phase from the intermediate tilted sitting position illustratedin FIG. 5 through a series of reclining positions to the fully reclinedposition illustrated in FIG. 6. Again, in the interest of simplicity,there is no showing of the legrest and its mounting and controlledarrangement which is usually found in the chair of this type.

Seat guiding means are operatively connected between the support 112 andthe seat 124 for imparting a first inclination to the seat during thefirst movement phase, as may be seen in FIGS. 4 and 5, and for impartinga second inclination to the seat during the second move ment phase, asmay be seen by comparing FIGS. 5 and 6. The seat guiding means includesa front seat guiding link 126 which is upwardly and forwardly inclinedand has a front pivotal connection 128 to the seat. A mounting bracket130 is fixed to the chair frame or support 112 (i.e. at the cross brace118) and carries a pin 132 which is confined within an elongated slot134 formed within the lower end portion of the front seat guiding link126. The pin 132 remains at the upper end of the slot 134 during thefirst movement phase and provides a front pivotal mount for the frontseat guiding link 126. During the second movement phase, there is a lostmotion travel between the pin and slot interconnection 132, 134, withthe link 126 translating upwardly such that the pin 132 is confined atthe lower end of the slot in the fully reclined position illustrated inFIG. 6. The seat guiding means further includes a rear seat guiding link138 which is upwardly and forwardly inclined and has a rear pivotalconnection 148 at its upper end to the seat 124 at a location spacedrearwardly of the front pivotal connection 128. The rear seat guidinglink 138 has a rear pivotal mount 142 on the support 112 provided by anappropriate bracket 144. The front and rear seat guiding links 126, 138serve during the first movement phase to guide the seat upwardly andrearwardly relative to the support to a first inclined position, andduring the second movement phase to guide the seat 124 to a secondinclined position, with the front seat guiding link 126 having a lostmotion travel relative to the support 112, and with the seat 124 turningon the rear pivotal connection 140-.

Turning now to the back-rest mounting and guide arrangement, theback-rest 122 is pivotally mounted on the seat 124 at a back-rest pivot146 such that the backrest may move substantially as a unit with theseat 124 during the first movement phase and recline relative to theseat 124 during the second movement phase to increase the angularrelationship therebetween. Spaced forwardly of the back-rest pivot 146is a back-rest guid ing link 148, which in this illustrative embodimentis upwardly and forwardly inclined. At its lower end the back-restguiding link 148 has a pivotal mount 150 on the support provided by anappropriate bracket 152, and at its upper end the back-rest guiding link148 has a pivotal connection 154 to the forwardly projecting extensionof the back-rest 122 at a location forwardly of the back-rest pivot 146.The back-rest guiding link 148 cooperates with the seat guiding links126, 138 during the first movement phase to maintain a substantiallyfixed angular relationship between the seat 124 and the backrest 122,and during the second movement phase to increase the angularrelationship between the seat and backrest.

Provision is made for blocking or precluding lost motion travel of thefront guiding link 126 relative to the support 112 during the firstmovement phase and for enabling such lost motion travel during thesecond movement phase. The blocking or sequencing means includes adouble-arced slot 156 formed on the mounting bracket adjacent the frontseat guiding link 126 and guidingly engaging a pin 158 fixed to thelower end of the link 1126. The douhle-arced slot 156 includes a firstslot section 156a merging with a second slot section 15612 at a junction1560. The pin 158 is at the end of the first slot section 15601 remotefrom the junction 156s in the sitting position of the chair andtranslates along the first slot section 156a during the first movementphase, as may be appreciated by comparing FIGS. 4 and 5. The curvatureof the first slot section 156a is selected at a radius about the pivotalmount 132 to confine the front seat guiding link 1.26 to turningmovement about the front pivotal mount 132 while at the upper end of thelost motion slot 134. The second slot section 15612 is substantiallyaligned with the lost motion slot 134 when the chair is in theintermediate tilted sitting position of FIG. 5 and is of an appropriatecurvature to enable the lost motion travel of the pin and slotinterconnection 132, 134 during the second movement phase such thatfront seat guiding link 126 may translate upwardly relative to thesupport, as may be appreciated by comparing FIGS. 5 and 6.

Appropriate stops are provided to establish the several chair positions,as is generally understood. Specifically, the seat guiding means isblocked in the intermediate tilted sitting position by a stop 160 fixedto the chair frame or support 112 behind the rear seat guiding link 138to block clockwise turning movement thereof about the rear pivotal mount142 when the chair arrives at the intermediate tilted sitting positionof FIG. 5. Thereafter, there is a turning movement of the seat about therear pivotal connection With a corresponding lost motion of the frontseat guiding link 126 relative to the support until the chair arrives atthe fully reclined position. In this illustrative embodiment, the fullyreclined position is established by contact of the lower end of theback-rest 122 with the rear cross brace 118 serving as a stop.

A latitude of modification, change and substitution is intended in theforegoing disclosure and in some instances some features of theinvention will be employed without a corresponding use of otherfeatures. Accordingly, it is appropriate that the appended claims beconstrued broadly and in a manner consistent with the spirit and scopeof the invention herein.

What I claim is:

1. A reclining chair comprising a support, a body-supporting meansincluding a seat and back-rest adapted to be mounted on said support forinclining and reclining movement respectively from a sitting position toan intermediate tilted sitting position during a first movement phaseand from said intermediate tilted sitting position to a recliningposition during a second movement phase, a front seat guiding linkpivotally connected to said seat, means including a lost motionconnection. providing a front pivotal mount for said front seat guidinglink on said support, a rear seat guiding link pivotally mounted on saidsupport and pivotally connected to said seat, means pivotally mountingsaid back rest on said seat at a back-rest pivot, a back-rest guidinglink, means pivotally mounting said back-rest guiding link on saidsupport. at a pivotal mount, means pivotally connecting said back-restguiding link to said back-rest at a location spaced from said backrestpivot, and means for blocking lost motion travel of said front guidinglink relative to said support during said first movement phase and forenabling said lost motion travel during said second movement phase.

2. A reclining chair comprising a support, a body-supporting meansincluding a seat and back-rest adapted to be mounted on said support forinclining and reclining movement respectively from a sitting position toan intermediate tilted sitting position during a first movement phaseand from said intermediate tilted sitting position to a recliningpostion during a second movement phase, a front seat guiding linkpivotally connected to said seat, means including a lost motionconnection providing a front pivotal mount for said front seat guidinglink on said support, a rear seat guiding link pivotally mounted on saidsupport and pivotally connected to said seat, said front and rear seatguiding links serving during said first movement phase to guide saidseat upwardly and rearwardly relative to said support to a firstinclined position, means pivotally mounting said back-rest on said seatat a back-rest pivot, a backrest guiding link, mean pivotally mountingsaid back-rest guiding link on said support at a pivotal mount, meanspivotally connecting said back-rest guiding link to said back-rest at alocation spaced from said back-rest pivot, and means for blocking lostmotion travel of said front guiding link relative to said support duringsaid first movement phase and for enabling said lost motion travelduring said second movement phase, said front and rear seat guidinglinks cooperating with said back-rest guiding link during said firstmovement phase to maintain a substantially fixed angular relationshipbetween said seat and back-rest during said first movement phase, saidfront and rear seat guiding links cooperating with said backrest guidinglink during said second movement phase to increase the angularrelationship between said seat and backrest with said front seat guidinglink having a lost motion travel relative to said support and with saidseat turning on the pivotal connection to said rear seat guiding link.

3. A reclining chair according to claim 2 wherein said back-rest guidinglink is downwardly and forwardly inclined in said sitting position andsaid pivotal mount is at the upper end of said back-rest guiding link.

4. A reclining chair according to claim 2 wherein said back-rest guidinglink is upwardly and forwardly inclined in said sitting position andsaid pivotal mount is at the lower end of said back-rest guiding link.

5. In a reclining chair, a support, body-supporting means including aseat and back-rest adapted to be mounted on said support for incliningand reclining movement respectively from a sitting position to anintermediate tilted sitting position during a first movement phase andfrom said intermediate tilted sitting position to a reclining positionduring a second movement phase, means pivotally mounting said back-reston said seat at a back-rest pivot, seat guiding means including a frontseat guiding link pivotally connected to said seat and a lost motionconnection providing a front pivotal mount for said front seat guidinglink on said support, said seat guiding means serving during said firstmovement phase to guide said seat upwardly and rearwardly relative tosaid support to a first inclined position, and back-rest guiding meanspivotally mounted on said support and pivotally connected to saidback-rest.

6. A reclining chair comprising a support, body-supporting meansincluding a seat and back-rest adapted to be mounted on said support forinclining and reclining movement respectively from a sitting position toan intermediate tilted sitting position during a first movement phaseand from said intermediate tilted sitting position to a recliningposition during a second movement phase, means pivotally mounting saidback-rest on said seat at a back-rest pivot, seat guiding meansincluding a front seat guiding link pivotally connected to said seat anda lost motion connection providing a front pivotal mount for said frontseat guiding link on said support, said seat guiding means servingduring said first movement phase to guide said seat upwardly andrearwardly relative to said support to a first inclined position,back-rest guiding means pivotally mounted on said support and pivotallyconnected to said back-rest, and means for blocking lost motion travelof said front guiding link relative to said support during said firstmovement phase and enabling said lost motion travel during said secondmovement phase, said seat guiding means cooperating with said back-restguiding means during said first movement phase to maintain asubstantially fixed angular relationship between said seat andback-rest, said seat guiding means cooperating with said back-restguiding means during said second movement phase to increase the angularre1ationship between said seat and back-rest with said front seatguiding link having a lost motion travel relative to said support.

7. A reclining chair comprising a support, body-supporting meansincluding a seat and back-rest adapted to be mounted on said support forinclining and reclining movement respectively from a sitting position toan intermediate tilted sitting position during a first movement phaseand from said intermediate tilted sitting position to a recliningposition during a second movement phase, means pivotally mounting saidback-rest on said seat at a back-rest pivot, seat guiding meansincluding a front seat guiding link pivotally connected to said seat anda lost motion connection providing a front pivotal mount for said frontseat guiding link on said support, said seat guiding means servingduring said first movement phase to guide said seat upwardly andrearwardly relative to said support to a first inclined position,back-rest guiding means pivotally mounted on said support and pivotallyconnected to said back-rest, and means intermediate said support andsaid front seat guiding link for blocking lost motion travel of saidfront guiding link relative to said support during said first movementphase and enabling said lost motion travel during said second movementphase, said blocking means including a doublearced slot and a pinengaged therein, said double-arced slot including at least a firstsection on a radius about said front pivotal mount.

8. In a reclining chair, a support, body-supporting means including aseat and a back-rest pivotally mounted thereon at a back-rest pivot,seat guiding means operatively connected to said seat including a frontseat guiding link, means including a lost motion connection movablymounting said front seat guiding link on said support and providing afront pivotal mount, means pivotally connecting said front seat guidinglink to said seat at a front pivotal connection, and a rear seat guidinglink pivotally mounted on said support at a rear pivotal mount andpivotally connected to said seat at a rear pivotal connection, saidfront and rear seat guiding links and the portion of said seatintermediate said front and rear pivotal con nection serving as threemovable links of a four-bar seat guiding linkage during a first movementphase with said support serving as a stationary link thereof, aback-rest guiding link pivotally mounted on said support at a backrestpivotal mount and pivotally connected to said backrest at a back-restguiding pivotal connection, said backrest guiding link being operativeto guide said back-rest during said first movement phase in a firstrelationship to said seat and being included in a first back-restguiding linkage which is constrained by said seat guiding linkage andincludes said rear seat guiding link, said seat intermediate said rearpivotal connection and said back-rest pivot, said back-rest intermediatesaid back-rest pivot and said back-rest guiding pivotal connection andsaid backrest guiding link as four movable links thereof and saidsupport intermediate said rear pivotal mount and said back-rest pivotalmount as a stationary link thereof, said means for blocking said rearguiding link of said seat guiding linkage at the end of said firstmovement phase such that said seat turns about said rear pivotalconnection serving as a stationary pivotal mount during a secondmovement phase, said back-rest guiding link being operative to guidesaid back-rest during said second movement phase in a secondrelationship to said seat and being included in a second back-restguiding linkage which is constrained and includes said seat intermediatesaid rear pivotal connection and said back-rest pivot as one movablelink thereof, said back-rest intermediate said back-rest pivot and saidback-rest guiding pivotal connection as a sec- 0nd movable link thereof,and said back-rest guiding link as a third movable link thereof and saidsupport and rear guiding link intermediate said back-rest pivotal mountand said rear pivotal connection as a stationary link thereof.

9. In a reclining chair, a support, body-supporting means including aseat and a back-rest pivotally mounted thereon at a back-rest pivot,seat guiding means operatively connected to said seat including a frontseat guiding link, a lost motion connection including a pin and slotmovably mounting said front seat guiding link on said support andproviding a front pivotal mount, means pivotally connecting said frontseat guiding link to said seat at a front pivotal connection, and a rearseat guiding link pivotally mounted on said support at a rear pivotalmount and pivotally connected to said seat at a rear pivotal connection,said front and rear seat guiding links and the portion of said seatintermediate said front and rear pivotal connections serving as threemovable links of a four bar seat guiding linkage during a first movementphase With said support serving as a stationary link thereof, aback-rest guiding link pivotally mounted on said support at a back-restpivotal mount and pivotally connected to said back-rest at a back-restguiding pivotal connection, said b ack-rest guiding link being operativeto guide said back-rest during said first movement phase in a firstrelationship to said seat and being included in a first back-restguiding linkage which is constrained by said seat guiding linkage andincludes said rear seat guiding link, said seat intermediate said rearpivotal connection and said back-rest pivot, said 10 back-restintermediate said back-rest pivot and said backrest guiding pivotalconnection and said back-rest guiding link as four movable links thereofand said support intermediate said rear pivotal mount and said back-restpivotal mount as a stationary link thereof, and means for blocking saidrear guiding link of said seat guiding linkage at the end of said firstmovement phase such that said seat turns about said rear pivotalconnection serving as a stationary pivotal mount during a secondmovement phase, said back-rest guiding link being operative to guidesaid back-rest during said second movement phase in a secondrelationship to said seat and being included in a second back-restguiding linkage which is constrained and includes said seat intermediatesaid rear pivotal connection and said back-rest pivot as one movablelink thereof, said back-rest intermediate said backrest pivot and saidback-rest guiding pivotal connection as a second movable link thereof,and said back-rest guiding link as a third movable link thereof and saidsupport and rear guiding link intermediate said back-rest pivotal mountand said rear pivotal connection as a stationary link thereof.

References Cited in the file of this patent UNITED STATES PATENTS2,918,109 Schliephacke Dec. 22, 1959 2,940,510 Schliephacke June 14,1960 2,948,331 Schliephacke Aug. 9, 1960

